Questions tagged [safety]

The tag has no usage guidance.

10 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
6
votes
1answer
360 views

Industry standard factor of safety for ballast design

What design standards exist for the design of ballast against uplift forces, and what factor of safety against uplift do these design standards promulgate? I am familiar with a typical FS of roughly 1....
2
votes
0answers
30 views

What is the test procedures for a flame arrester?

A flame arrester is basically a heat exchanger in front of the tubulure. It conducts the heat of flame to some other place (to the liquid and/or the container especially if the container is built from ...
1
vote
0answers
389 views

Is surgical and medical mask based on static electricity?

Is surgical and medical mask based on static electricity? By static electricity I mean like 3M N95 mask with at least two different layers of positive and negative static electrical layer. I googled ...
1
vote
0answers
24 views

Standards for safety car seatbelts locking condition

Is there an (international) standard which determines the condition when a car seat belt locks? Which standard is it? Does the standard determines a speed in m/s of the belt, such that it locks if ...
1
vote
0answers
26 views

DC Inverter motor AC utilization category

I am looking at specs of an air conditioner unit. It uses DC inverter technology and maximum current listed as 21.5A So are DC inverter motors considered resistive or inductive? What utilization ...
1
vote
2answers
215 views

Pivoting trailer gate on multiple axes

I am currently trying to design a rear gate to retrofit to an existing caged trailer (similar to image 3), with the goal of having a system where the rear gate can pivot down (on its bottom edge) to ...
1
vote
0answers
52 views

Origin of barricade tape color combinations (allegedly OSHA)

Various sources (e.g., Wikipedia and WorkSafely) claim that the seven color combinations commonly used for barricade tape (a.k.a. caution tape) and safety markings in North America (yellow and black ...
0
votes
0answers
65 views

Need advice on how to detect an object in the way of a closing door

I have a system design with a 149oz-in stepper motor for opening/closing a drawer style door. My cross sectional dimensions of the door opening are 20" width by 15" height. The motor ...
0
votes
1answer
87 views

Alternatives to sawstop technology

Sawstop table saw braking system works by putting a low voltage on the blade, and when it detects that voltage shorted to ground, the blade is retracted and slammed into an aluminum block. The claim ...
-2
votes
1answer
40 views

Public data re possible estimate of baghouse efficiency. Plus characteristics of chromium emissions. Thanks!

I'm doing an article on a company whose Title V Operating Permit is currently under review by state regulators. (See biographical note below.) See also my specific questions, numbered below. Most ...